Public speaking is very important for everyone in the world. Almost all the business person has studied Public Speaking because they think it’s a significant subject for them, and also it can make them even more successful in their career. Even though Public Speaking can help many people who work in many different kinds of jobs, but if they don’t know how to give an effective speech, it will be worth nothing. In order to give an effective speech, we must choose an interesting topic for audience, have clear voice projection, speaking with emotion, make audience involve with us, and use appropriate gesture. Choosing topic for giving speech is very crucial . How good or how bad your speech is, will depend on your topic. There’re many different kinds of topics, but which one we should use, and which one we should not use. For example, you are going to give a speech in front of kids in school, should we choose a topic about science or planets? The answer will be NO for sure. If all of the a...